The mining campaigns are very nice. A small suggestion would be to be a bit more clear about the rewards and the payment(s) of the rewards. It was said there would be approx 1,000 XMG per participant and if I am correct this will be paid in small parts? Until now I received a one time reward payment of 126 XMG, I guess and trust that was a first payment? Anyway, I think if you want to attract more and repeating participants, you will need to communicate a plan and stick to this mining and reward plan, clearly stating rewards and payment schedule. Cheers.
I should mention the sending plan. 126 XMG is the 1st payment, there will be 9 additional payments due in the following weeks, with 126 XMG per week, totally 1260 XMG per participant. I won't be able to handle pays in different scales, so let's keep it in simply way.